"For good conduct, which means, that the soldier
has never been punished, he receives further extra pay (Good
Conduct Pay). The daily rate amounts to 1d. The recipient
wears a badge in the shape of a ^, pointing upwards, on the lower
sleeve of the left arm. The first of these badges is awarded
after 2, the second after 6, and the third up to the sixth
respectively after 12, 18, 23, and 28 years of service. Every
badge brings an extra penny a day. In case of punishment the
soldier forfeits this extra pay or a part of it, but can recover
it by good conduct. These extra payments and badges are only
awarded to men from the corporal downward."

Over the years during the Victorian period there were several
sets of rules governing the award of Good Conduct badges as shown
below:[2]

The 1836 and 1854 rules awarded badges at 5, 10, 15, 20
and 25 years of service.